US1836798A - Liner for the cylinders of reciprocating engines - Google Patents

Liner for the cylinders of reciprocating engines Download PDF

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Publication number
US1836798A
US1836798A US468055A US46805530A US1836798A US 1836798 A US1836798 A US 1836798A US 468055 A US468055 A US 468055A US 46805530 A US46805530 A US 46805530A US 1836798 A US1836798 A US 1836798A
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Prior art keywords
liner
sections
cylinders
joint
reciprocating engines
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Expired - Lifetime
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US468055A
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Hefti Wilhelm
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Sulzer AG
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Sulzer AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers
    • F16J10/04—Running faces; Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/002—Double acting engines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49229—Prime mover or fluid pump making
    • Y10T29/4927—Cylinder, cylinder head or engine valve sleeve making
    • Y10T29/49272—Cylinder, cylinder head or engine valve sleeve making with liner, coating, or sleeve

Definitions

  • This invention relates to liners for the cylgroove on the other adjacent seotionresulting in a joint on the inner wall of the liner which lies in one plane at right angles to the axis of the cylinder.
  • a joint produced considerable wear upon the piston rings and this was increased if the two sections were inaccurately centered or aligned.
  • Proposals have also been made to give the abutting ends of the liner sections a sinuous or wave-like form but in such cases as there was no means for maintaining the tWo sections in alignment the slightest play between the liner and the cylinder produced a series of rough surfaces which caused rapid wear of the piston rings and led to risk of breakage.
  • the object of the present invention is to provide a joint which will obviate the drawbacks of the previous constructions whilst combining their respective advantages.
  • the adjoining ends of the liner sections are stepped or flanged, the abutting edges of the inner flanges being of irregular or wave-like form whilst the abutting edges of the surrounding outer flanges are shaped to produce a true butt joint in a plane at right angles to the cylinder axis, which supports the two sections and maintains them in proper alignment.
  • Two constructions of liner according to this invention are diagrammatically illustrated in vertical section in the accompanyare stepped or flanged so as to form a halflapped joint at 4.
  • the abutting ends 5 and 6 01 the two sections form a butt joint which lies in one plane at right angles tothe axis of the cylinder.
  • the abutting or adjacent edges of the inner flanges 7 and 8 however are of wave like form, so that the piston rings do not suddenly encounter a oint in the liner wall but gradually pass over this series of Wave-like joints.
  • a gap X may be provided so as to enable the liners to expand freely in an axial direction when they become heated.
  • FIG. 2 differs from that above described in that the adj oining ends of the liners are furnished with a tongue and grooved joint instead of with a half-lapped joint as in the previous construction.
  • the upper liner 1 is shown as furnished with a projecting tongue 9 to engage a groove in the lower liner 2.
  • cooling jackets are shown at 11 but it will be. understood that any other arrangement may be provided without departing from this invention.
  • a divided liner for a cylinder of a reciprocating engine particularly suitable for double-acting internal combustion engines comprising sections stepped at adjoining ends to form a longitudinally expandible joint, abutting edges of irregular form at the inner flanges, and abutting edges at the surrounding outer flanges forming a true butt joint in a plane at right angles to the cylinder axis supporting said two sections and maintaining them in proper alignment.
  • a divided liner for a cylinder of a reciprocating engine particularly suitable for double-acting internal combustion engines comprising sections stepped at adjoining ends to form an expandible joint, abutting edges of irregular Wave-like form at the inner flanges, and abutting edges at the surrounding outer flanges forming a true butt joint in a plane at right angles to the cylinder axis and supporting said two sections and maintaining them in proper alignment.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

W. HEFTI Filed July 15. 1950 Dec. 15, 1931.
LINER FOR THE CYLINDERS OF REGIPROCATING ENGINES Patented Dec. 15, 1931 UNITED stares PATENT OFFICE WILI-IELM HEF'I'I, OF WINTERTHUR, SWITZERLAND, ASSIGNOR TO THE FIRM F SULZER FRERES SOCIETE ANONYME, OF WINTERTI-IUR, SWITZERLAND LINER FOR THE CYLINDERS OF REGIPROGATING ENGINES Application filed July 15, 1930, Serial No. 468,055, and in Switzerland August 13, 1929.
This invention relates to liners for the cylgroove on the other adjacent seotionresulting in a joint on the inner wall of the liner which lies in one plane at right angles to the axis of the cylinder. Such a joint produced considerable wear upon the piston rings and this was increased if the two sections were inaccurately centered or aligned. Proposals have also been made to give the abutting ends of the liner sections a sinuous or wave-like form but in such cases as there was no means for maintaining the tWo sections in alignment the slightest play between the liner and the cylinder produced a series of rough surfaces which caused rapid wear of the piston rings and led to risk of breakage.
The object of the present invention is to provide a joint which will obviate the drawbacks of the previous constructions whilst combining their respective advantages.
To this end, according to the present invention, the adjoining ends of the liner sections are stepped or flanged, the abutting edges of the inner flanges being of irregular or wave-like form whilst the abutting edges of the surrounding outer flanges are shaped to produce a true butt joint in a plane at right angles to the cylinder axis, which supports the two sections and maintains them in proper alignment. 1
Two constructions of liner according to this invention are diagrammatically illustrated in vertical section in the accompanyare stepped or flanged so as to form a halflapped joint at 4. The abutting ends 5 and 6 01 the two sections form a butt joint which lies in one plane at right angles tothe axis of the cylinder. The abutting or adjacent edges of the inner flanges 7 and 8 however are of wave like form, so that the piston rings do not suddenly encounter a oint in the liner wall but gradually pass over this series of Wave-like joints. Between the two sections of the liner a gap X may be provided so as to enable the liners to expand freely in an axial direction when they become heated.
The construction shown in Figure 2 differs from that above described in that the adj oining ends of the liners are furnished with a tongue and grooved joint instead of with a half-lapped joint as in the previous construction. Hence the upper liner 1 is shown as furnished with a projecting tongue 9 to engage a groove in the lower liner 2.
In the particular construction illustrated cooling jackets are shown at 11 but it will be. understood that any other arrangement may be provided without departing from this invention.
I claim:
1. A divided liner for a cylinder of a reciprocating engine particularly suitable for double-acting internal combustion engines, comprising sections stepped at adjoining ends to form a longitudinally expandible joint, abutting edges of irregular form at the inner flanges, and abutting edges at the surrounding outer flanges forming a true butt joint in a plane at right angles to the cylinder axis supporting said two sections and maintaining them in proper alignment.
2. A divided liner for a cylinder of a reciprocating engine particularly suitable for double-acting internal combustion engines, comprising sections stepped at adjoining ends to form an expandible joint, abutting edges of irregular Wave-like form at the inner flanges, and abutting edges at the surrounding outer flanges forming a true butt joint in a plane at right angles to the cylinder axis and supporting said two sections and maintaining them in proper alignment.
In testimony whereof I have aflixed my signature.
WILHELM HEFTI.
US468055A 1929-08-13 1930-07-15 Liner for the cylinders of reciprocating engines Expired - Lifetime US1836798A (en)

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CH1836798X 1929-08-13

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613431A (en) * 1948-03-22 1952-10-14 Leland T Mcgee Method of making hydraulic cylinders with plungers
US2703077A (en) * 1952-07-08 1955-03-01 Fairbanks Morse & Co Engine cylinder structure
US6044821A (en) * 1998-11-19 2000-04-04 Cummins Engine Company, Inc. Durable cylinder liner and method of making the liner
US20060112924A1 (en) * 2002-08-24 2006-06-01 Helmut Schaefer Cylinder liner for a cylinder crankcase
US20100116240A1 (en) * 2007-04-04 2010-05-13 Gkn Sinter Metals, Llc. Multi-piece thin walled powder metal cylinder liners
US20100175641A1 (en) * 2007-11-08 2010-07-15 Satoshi Yamada Cylinder block and method for manufacturing the same
DE102011102208A1 (en) * 2011-05-21 2012-11-22 Mahle International Gmbh Cylinder liner and method for its production
US9803583B2 (en) 2015-03-18 2017-10-31 Federal-Mogul Llc Double wall self-contained liner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2613431A (en) * 1948-03-22 1952-10-14 Leland T Mcgee Method of making hydraulic cylinders with plungers
US2703077A (en) * 1952-07-08 1955-03-01 Fairbanks Morse & Co Engine cylinder structure
US6044821A (en) * 1998-11-19 2000-04-04 Cummins Engine Company, Inc. Durable cylinder liner and method of making the liner
US20060112924A1 (en) * 2002-08-24 2006-06-01 Helmut Schaefer Cylinder liner for a cylinder crankcase
US7240608B2 (en) * 2002-08-24 2007-07-10 Daimlerchrysler Ag Cylinder liner for a cylinder crankcase
US20100116240A1 (en) * 2007-04-04 2010-05-13 Gkn Sinter Metals, Llc. Multi-piece thin walled powder metal cylinder liners
US20100175641A1 (en) * 2007-11-08 2010-07-15 Satoshi Yamada Cylinder block and method for manufacturing the same
US8096270B2 (en) * 2007-11-08 2012-01-17 Toyota Jidosha Kabushiki Kaisha Cylinder block and method for manufacturing the same
DE102011102208A1 (en) * 2011-05-21 2012-11-22 Mahle International Gmbh Cylinder liner and method for its production
US9803583B2 (en) 2015-03-18 2017-10-31 Federal-Mogul Llc Double wall self-contained liner

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